脱口说英语口语交际习语大全
T-14:to the backbone 彻底
A:Nancy is going out with David. A:南希正和大卫交往。
B:I hope not. David is a liar to the backbone. B:我可不希望这样,大卫是个十足的骗子。
A:How come? A:何以见得?
B:He never tells anything true. B:他从来就没讲过真话。